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Staff iOS Engineer

Seoul💼 Full-time🗓 2026-09-10 → 2026-09-25

Core

Lead architecture and development for Coupang Pay and Rocket Pay iOS applications, driving mission-critical payment solutions for Coupang's ecosystem.

Role type

Staff iOS Engineer (Technical Lead)

Builds

iOS payment applications (Coupang Pay, Rocket Pay) for consumers, sellers, and merchants

Domain

Fintech / Mobile Payments

Deliverable

production ML models | product features

Required skills

iOS application development, Swift, large-scale consumer app architecture, mission-critical service development, UIKit, SwiftUI, Combine, Async/Await, mobile app performance optimization, memory management, network processing

Preferred skills

Payment/Fintech/Banking/Wallet services, Flutter cross-platform development, authentication and security, Tech Lead or Staff Engineer experience, mentoring junior engineers

Technologies

iOS, Swift, UIKit, SwiftUI, Combine, Async/Await, Flutter

Responsibilities

Lead architecture design and development for iOS applications, drive system design and technical decision-making, mentor developers to improve engineering excellence, collaborate with Product Managers and Designers, define iOS platform technical direction and best practices

Seniority

Staff, hands-on IC with mentorship

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